FUZZY APPROACH TO SUPPLY CHAIN MANAGEMENT FOR E-COMMERCE STORE

The model of e-commerce web store is developed and analyzed from supply chain management view of point. Main focus of this scientific paper is highlighted on fuzzy approach to crucial data about products, stored in the database of e-commerce web shop. For unit price of the product, and the probability of buying product of certain dimensions, it is calculated the fuzzy mean of the expected prize and the variance. The SWARA method is implemented and relative weight criteria is calculated in order to optimize supply chain management

ANALYSIS OF A SOLAR PLANT FOR THE PRODUCTION OF HOT CONSUMPTION WATER FOR THE HOSPITAL

The paper presents and analyzes the efficiency of a solar plant for the production of thermal energy, ie the preparation of hot water (DHW) in the hospital in Subotica. At the analyzed facility, solar collectors provide the complete needs of the hospital for hot water from spring to autumn, while in the second part of the year, the required thermal energy is obtained from additional sources. The solar plant consists of 144 solar collectors, where the total gross area of the collector is 362.6 m2 and the installed power of the plant is 253.8 kW. During the analyzed period from 2014 to 2017, a total of 558 MWh of thermal energy was produced, ie energy equivalent to 58,613.43 kg of fuel oil was saved. This thermal energy was used for the needs of the kitchen, laundry, central sterilization, heating of the operating room, and etc

MAINTENANCE, TESTING AND AUTOMATIC CONTROL OF THE CUP FILLING MASCHINE

Industrial automation of the production process is based on the fusion of a CNC machine and an industrial robot. The industry of today requires skilled professionals and educators. Special attention is to be paid to the testing of the components and system operation and the maintenance of the system. Robots and automation are omnipresent nowadays and have also taken a significant role in education. The research presented here aims to overhaul the scaled model of the cup-filling machine to make it operate fully automated. The parts and subsystems of the cup-filling machine are explained in detail and their operation was tested. The cup-filling machine is fully automated using a programmable logic controller (PLC) SIEMENS S7 300. The machine can recognize two cup sizes and fills both types without overspilling. Filled cups are transported over a conveyor belt and classified according to their sizes PLCs have mainly replaced relays in industrial automation, bearing in mind that this way, scale-up is much more feasible, and alteration of control is done in PLC program code. This also has contributed to better maintenance and operation verification

CREATING AND ENCRYPTING E-COMMERCE DATABASE FOR SELLING MECHANICAL ELEMENTS

In this paper it is presented creation and encryption of e-commerce database for selling mechanical elements. It is shown a procedure of creation a database and tables with appropriate data, which is the first step in developing stable e-commerce application. For security reason it is necessary to encrypt the database, and it is described a complete process, and as well it is given part of the code of web application for inserting data into the tables, deleting some data and updating them. In developing e-commerce application for selling mechanical parts, it is applied C# programming language by using ASP.NET, with using HTML language and XML